Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B
The AirTAC Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B is a genuine double-acting profile-type cylinder with a Ø40mm bore, 225mm stroke and a built-in 4M210-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
- BoreØ40 mm
- Stroke225 mm
- Built-in valve4M210-08
- Valve port1/4"
- CoilDC24V
- EntryTerminal
About the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B
The SAUF40X225-08B is a double-acting profile cylinder with a built-in AirTAC 4M210-08 5/2 solenoid valve on the cap. One coil signal drives the actuator, eliminating remote plumbing and saving a manifold slot. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It features a 1/4" cylinder port, an M12x1.25 rod thread, and 21 mm adjustable cushions.
Operating within the 0.15-0.8 MPa valve window, this 40 mm bore generates 628 N push force at 0.5 MPa. The integrated valve provides 16 mm2 flow (Cv 0.89) and handles up to 5 cycles per second. The DC24V terminal coil offers IP65 protection. For sizing, the safe working load is roughly 377 N, and it can vertically lift about 32 kg with a 2:1 margin. Note this SKU lacks a magnet and cannot accept a sensor.
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B Technical Specifications
| Model | Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B |
|---|---|
| Series | SAUF profile cylinder with valve |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | 1/4" |
| Rod thread | M12×1.25 |
| PU tube | Ø8 × Ø5 |
| Built-in valve | 4M210-08 (5/2) |
|---|---|
| Valve flow | 16.0 mm² (Cv 0.89) |
| Max frequency | 5 cycle/sec |
| Coil voltage | DC24V · DC 3.0 W |
| Electrical entry | Terminal · IP65 · B class |
| Response time | 0.05 s and below |
| Operating pressure | 0.15 – 0.8 MPa (valve limit) |
| Speed range | 30 – 800 mm/s |
The cylinder rates to 1.0 MPa but the built-in valve operates 0.15–0.8 MPa, so run the assembled SAUF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAUF datasheet. Port options: PT / G.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
Sized within the valve's 0.15–0.8 MPa range. Actual usable force is lower than theoretical due to friction and back-pressure.
Model Code: Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B
| SAUF | Profile cylinder with built-in 4M valve. |
|---|---|
| 40×225 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M210-08. |
| B | Coil voltage DC24V. |
| I / (blank) | Terminal electrical entry. |
SAUF does not hold its load without air — the valve routes air, it is not a lock. For a held load, add an external rod lock or a pilot-operated check valve.
Where the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B Is Used
Diverter Gate Actuation
Decentralized sorting on a conveyor where one coil signal per gate removes the need to run long tubing back to a central manifold.
Clamp Station Control
Independent clamping at a machining cell, using the built-in 4M210-08 valve to switch directly without consuming a manifold slot.
Package Stopper Mechanism
Individual package stops on a packing line, leveraging the compact profile and self-contained 5/2 valve for rapid deployment.
Is the Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B the Right Choice?
When sizing, compare neighboring bores: the 32 mm bore yields 402 N push at 0.5 MPa, while the 50 mm bore provides 982 N. This 40 mm bore gives 628 N push and 528 N pull at 0.5 MPa. Always size force within the 0.15-0.8 MPa assembled valve range, never the 1.0 MPa cylinder body rating. Confirm the DC24V terminal entry and PT threads meet your electrical standards. By default the rod retracts when energized, but you can reposition the valve to extend on signal. Because this SKU has no magnet, it cannot take a sensor. For loads requiring holding on air loss, add an external rod lock or pilot-operated check valve, as the valve only routes air. For this 225 mm stroke, ensure adequate side-load guidance.
Quick checklist
- ✓ Force at 0.15–0.8 MPa
- ✓ Coil voltage matches panel
- ✓ Terminal vs grommet entry
- ✓ Retract- or extend-when-energised
- ✓ Load-holding → external rod lock
Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B FAQ
It generates 628 N push and 528 N pull at 0.5 MPa. The built-in valve is a 4M210-08 5/2 solenoid with 1/4" port, 16 mm2 flow (Cv 0.89), and a DC24V terminal coil. The assembled unit must operate within the 0.15-0.8 MPa valve range, even though the cylinder body rates to 1.0 MPa.
By default the rod retracts when the coil is energized, but you can reposition the valve to extend on signal. The valve only routes air; it is not a load lock. If you need to hold a load during air loss, install an external rod lock or pilot-operated check valve.
Related AirTAC Cylinders & Valves
Request a Quote for Airtac SAUF Series Valve-Mounted Air Cylinder SAUF40X225-08B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.